Granted Patent
Utility
US 5,896,243 · App. 08/749,103
Magneto-resistive effect type head with step or protrusion for reducing thermal asperity
Inventors:
Takao Koshikawa, Yoshifumi Mizoshita
Patented Case
View Patent ↗
Granted: Apr 20, 1999
Filed: Nov 14, 1996
Inventors
Takao Koshikawa
Yoshifumi Mizoshita
Assignee (at issue)
Fujitsu Limited
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.